diff --git a/test/plugin_spec.lua b/test/plugin_spec.lua
index c629863..2ebe980 100644
--- a/test/plugin_spec.lua
+++ b/test/plugin_spec.lua
@@ -16,4 +16,44 @@ describe('Hurl.nvim plugin', function()
     assert.are.same('split', _HURL_CFG.mode)
     assert.are.same(true, _HURL_CFG.debug)
   end)
+
+  describe('Utility functions', function()
+    local utils = require('hurl.utils')
+
+    it('should correctly log info', function()
+      -- TODO: add a test to check log_info function
+    end)
+
+    it('should correctly log error', function()
+      -- TODO: add a test to check log_error function
+    end)
+
+    it('should correctly get visual selection', function()
+      -- TODO: add a test to check get_visual_selection function
+    end)
+
+    it('should correctly create tmp file', function()
+      -- TODO: add a test to check create_tmp_file function
+    end)
+
+    it('should correctly create custom command', function()
+      -- TODO: add a test to check create_cmd function
+    end)
+
+    it('should correctly format the body of the request', function()
+      -- TODO: add a test to check format function
+    end)
+
+    it('should correctly render header table', function()
+      -- TODO: add a test to check render_header_table function
+    end)
+
+    it('should correctly check if the response is json', function()
+      -- TODO: add a test to check is_json_response function
+    end)
+
+    it('should correctly check if the response is html', function()
+      -- TODO: add a test to check is_html_response function
+    end)
+  end)
 end)